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1 /**
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2 * Palanthir - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * Copyright (c) 2012 The Chromium Authors. All rights reserved.
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7 *
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8 * Redistribution and use in source and binary forms, with or without
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9 * modification, are permitted provided that the following conditions are
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10 * met:
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11 *
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12 * * Redistributions of source code must retain the above copyright
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13 * notice, this list of conditions and the following disclaimer.
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14 * * Redistributions in binary form must reproduce the above
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15 * copyright notice, this list of conditions and the following disclaimer
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16 * in the documentation and/or other materials provided with the
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17 * distribution.
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18 * * Neither the name of Google Inc., the name of the CHU of Liege,
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19 * nor the names of its contributors may be used to endorse or promote
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20 * products derived from this software without specific prior written
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21 * permission.
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22 *
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23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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27 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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29 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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34 **/
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35
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36
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37 #pragma once
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38
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39 #include <boost/noncopyable.hpp>
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40 #include <stdint.h>
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41 #include <cassert>
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42 #include <stdlib.h>
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43
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44 struct sqlite3;
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45 struct sqlite3_stmt;
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46
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47 namespace Palanthir
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48 {
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49 namespace SQLite
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50 {
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51 class StatementReference : boost::noncopyable
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52 {
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53 private:
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54 StatementReference* root_; // Only used for non-root nodes
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55 uint32_t refCount_; // Only used for root node
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56 struct sqlite3_stmt* statement_;
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57
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58 bool IsRoot() const;
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59
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60 public:
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61 StatementReference();
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62
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63 StatementReference(sqlite3* database,
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64 const char* sql);
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65
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66 StatementReference(StatementReference& other);
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67
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68 ~StatementReference();
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69
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70 uint32_t GetReferenceCount() const;
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71
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72 struct sqlite3_stmt* GetWrappedObject() const
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73 {
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74 assert(statement_ != NULL);
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75 return statement_;
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76 }
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77 };
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78 }
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79 }
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